The crash happened in the early hours of Saturday.
Photograph: Yui Mok/PA

A teenage girl and 21-year-old man have died and two other teenagers are in life-threatening conditions after a car crashed into a tree in Essex.

A 21-year-old man also died in the crash in Loughton, Essex, in the early hours of Saturday.

A second 21-year-old man was arrested at the scene of the crash in Loughton in the early hours of Saturday on suspicion of causing death by dangerous driving, causing serious injury by dangerous driving and perverting the course of justice.

The man, from Loughton, was taken to hospital, where he is being treated for what are believed to be minor injuries.

Officers found a silver BMW M3 had collided with a tree in the Goldings Hill area of Loughton shortly after 2am. No other vehicle was involved.

Essex police appealed for people to come forward who may have witnessed the incident, or saw the silver BMW M3 driving in the Loughton and Epping areas early on Saturday. Police were also keen to speak to anyone who was driving in the area who had dashcam footage, or anyone who had CCTV.

Witnesses were asked to contact the serious collision investigation unit on 01245 240 590 or contact Crimestoppers anonymously on 0800 555 111 or at Crimestoppers-uk.org.